Extension-table



(No Model.)

W. H. BURK. EXTENSION TABLE.

Patented Aug. 27, 1889.

UNITED STATESv PATENT OFFICE.

VILLIAM HENRY BURK, OF SHEBOYGAN, VISCONSIN.

EXTENSION-TABLE.

SPECIFICATION forming part of Letters Patent No. 409,911, dated August2'?, 1889.

Application led February 9, 1889. Serial No. 299,294. (No model.)

T0 a/ZZ whom it htay concern:

Be it known that I, WILLIAM HENRY BURK, of Sheboygan, in the county ofSheboygan and in the State of fisconsin7 have invented certain new anduseful Improvements in EX- tension-Tables; and Il do hereby declare thatthe following is a full, clear, and exact description thereof.

My invention relates to extension-tables, and it will be hereinafterdescribed With reference to the accompanying drawings and subsequentlyclaimed.

In the drawings, Figure 1 represent-s a plan view of an extension-tabledrawn out ready for the insertion of its detachable leaves and partlybroken away 5 Fig. 2, a section taken on the line 2 2 of Fig. l 5 Fig.3, asection on theline 3 3, Fig. 2, showing certain of the parts brokenaway; Fig. 4, a detail plan view of one of the slide-blocks; Fig. 5, asection taken on line 5 5, Fig. 4; Fig. 6, a side elevation of one ofthe slide-blocks partly broken away.

Referring by letter to the drawings, A represents the perlnanentleavesof an extension table; B, the grooved slides; C, the grooved guide andstop blocks for said slides, and D the support arranged intermediate ofsaid permanent leaves.

With the exception of the guide and stop blocks, the parts abovedescribed are of the usual construction, and therefore I deem itunnecessary to particularly describe lthe saine in this application.

Each of the guide and stop blocks C is sawkerfed for a portion of itslength to torina spring-tongue h, and while I haveshown both aright-angular and diagonal saw-kerf, it is obvious that the same may beeither curved or straight without departing from the spirit of myinvention. The face cof the V-shaped groove on the tongue side of saidblock is cut downfor the greater portion of its length to leave a spacebetween this face and the opposing face of the slide-groove, thereby ottsetting the spring-tongue. By this construction I lessen the frictionalcontact of the guide and stop blocks with the slides, and in case theparts bind when the table is being extended or closed up the strain willmore readily come upon the springstongues h and the yield of the latterovercome the difculty, while at the same time the saw-kerfs in saidblocks compensate for the expansion and contraction of said parts, andsaid tongues norinally eXerta pressure sufficient to keep said slidesfrom working loose on each other when the table is moved about.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

A guide and stop block for extension-table slides, cut out to forni aspring-tongue integral therewith, and having one face of the groove onits tongue side cut away for a certain distance of itslength to offsetsaid sprin tongue, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, atSheboygan, in the county of Sheboygan and State of Wisconsin, in thepresence of two witnesses.

VILLIAM HENRY BURK.

Witnesses:

JULIUs KRoos, W. R. WILLIAMS.

